Finding the Fourth Proportional to 750,856.84, 1,036,208.31 and 411,325.09
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Solution
The fourth proportional to 750,856.84, 1,036,208.31 and 411,325.09 is: 567,642.80
Step by Step Solution
- Step 1: Write the proportion equation
750,856.84 : 1,036,208.31 = 411,325.09 : x - Step 2: Convert to fraction form
750,856.84/1,036,208.31 = 411,325.09/x - Step 3: Cross multiply
750,856.84x = 1,036,208.31 × 411,325.09 - Step 4: Simplify right side
750,856.84x = 426,218,476,369.50 - Step 5: Solve for x
x = 426,218,476,369.50/750,856.84 - Step 6: Final answer
x = 567,642.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.